
S01E01 A Red Thread
Si On listens to his favorite radio station on the bus and realizes a man next to him, Hong Seok is also listening to the same station as him. Three years later, Hong Seok, the...
Si On asks Hong Seok to give him more time to pay him back. Even though Hong Seok knows that it is not allowed, he gives him one more month. Meanwhile, Soo Ryeon gets mad at him as she finds out, and sends him back to Si On to get a cosigner.
Song Shi-on, a dance student disowned by his family, forms a romantic bond with debt collector Jin Hong-seok, but their relationship faces many obstacles.